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2. Foster, I., Kesselman, C., Nick, J. and Tuecke, S. The Physiology of the Grid: An Open Grid Services Architecture for Distributed Systems Integration. Global Grid Forum, URL http://www.globus.org/alliance/publications/papers/ogsa.pdf.
3. About the Globus Toolkit, http://www.globus.org/toolkit/about.html.
4. How SETI@home works, http://seticlassic.ssl.berkeley.edu/about_seti/about_seti_at_home_1.html.
5. Distributed computing in practice: the Condor experience